Numerous significant tornadoes are expected Saturday afternoon and evening, with the highest risk across several states in the Deep South, forecasters say.

At least 10 people have died in Missouri after tornadoes ripped through across the central and southern part of the US, authorities said. The state's governor has warned of more severe weather, including tornadoes on Saturday. The state emergency management service has confirmed widespread damage across the region.

A quickly-spreading wildfire, fueled by powerful winds, has forced the urgent evacuation of the entire town of Velma, in Stephens County Oklahoma. The Oklahoma Highway Patrol is closing parts of OK-7 to keep people out of danger as flames tear through dry grass.